Safety brake



Filed June 2o. 1922 .1'4 sneets-sneet 1 ifa/f wm @@Wm m (jvwenko/oSimms! Jan. 8, 1924.

I l 1,480,540 E. M. lvlE sAFETY BRAKE Filed June zo. 1922 4sheets-'sheet 2 WMM@ ` E. M.' NIE SAFETY BRAKE W f, I '7 /V////// fnwwf;

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www* 'l To all whom it may concern :i

Patented Jan. 8, 1924.

UNITED STATES n l 1,480,540'i PAT-ENT 'OFFICE-.i

EMORY M. IVIE, or ATLANTA, GEORGIA.

SAFETY BRAKE.

Application filed June 20, 1922.' Serial No. 569,708.

Be it known that I, EMORY Atlanta, in the county of Fulton and State ofGeorgia, have inventednew vand usefull' Improvements in Safety Brakes,of which the following is a specification.`

One object of my said invention is the prov- Another object is theprovision 'of brakeH that will not run up on the wheels and cause thebrakes to jerk when appliedby hand, the shoes of my novel brake beingopposed to the top quarter ofthe wheels.

Another object is the provision of a brake which will absolutely releasein virtue of its being overbalanced and so disposed that the brakerigging is located above the sand bolster so that in case the car isderailed the bottom rod will not be engaged and impaired by an obstacleon the track or a cross-over rail.

Other objects and practical advantages of the invention will be fullyunderstood from the following description and claim when the same areread in connection with the drawings, accompanying and forming part ofthis specification, in which Figure 1 is a view showing in sideelevation a truck frame equipped with the brake constituting the bestpractical embodiment of my invention of which I am aware.

Figure 2 is a cross-section taken on the line 2 2 of Figure 1.

Figure 3 is a top plan view showing the improvement.

Figures 4 and 5 are longitudinal vertical sections'taken in the planesindicated by the lines 4-4 and 5 5, respectively, of Figure 3.

Figure 6 is a detail view showing the con` nections of one of the linksadjacent to a brake shoe.

Figure 7 is a perspective of one end of a M. Ivm, a'- citizen of theUnited States, residing atv f Similar numerals of reference vdesignatecorresponding partsv invall of the .views of the drawings.

` The truck rframe illustrated, is rofthe constructionV vconstitutingthe vsubject matter (f my contemporary application of even ate that mynovel brake can be employed on any other truck to which 'it isapplicableYy I would say, however, thatv in `accordance with my presentinvention the' side memf bers Y1 of the truck frame are providedl attheir inner sidesl with shelves 2, mount# ed on the side' frames anddesigned' and adapted to project under the brake heads or beams and thebrake shoes and serving after the manner of cups to catch the brakebeams and prevent the same from falling underV the wheels andderailingthe train.

V'Ihe side members 4lof the truck frame are also characterized by brakev,hanger brackets 3which extend from the inner" Sides of the said sidemembers so as to afford a top quarter brake and one which willabsolutely release in virtue of its being overbalanced. In thisconnection it will be understood that the hangers t of the brake arehung upside-down so as to raise the brakerigging above the sand bolsterdesignated by 5, this being advantageous inasmuch as in the event of acar being derailed the bottom rod 6 of the brake will not be likely tobe torn off by an obstacle on the track or a cross-over rail. Thehangers 4 are pivotally connected at 7 to the brackets 3 and arepivotally connected to reduced end portions 8 on the beams 11, Figures6, 7 and 8. The brake shoes 10 are preferably integral with thecrosswise beams 11, and are opposed to the upper quarters of the wheels12X as shown for the purpose before indicated. To an arm 12 on one beam11 is fulcrumed a floating lever 13, and to an arm 14 on the other beam11 is fulcrumed a lever 15, the upper arm ofthe said lever 15 beingpivotally connected at 16 to an arm 17 fixedly connected to the topbolster 18 of the truck frame. The before mentioned bottom rod 6 isinterposed between and vpivotally connected to the lower arms of thelevers 13 and 15 and is disposed and adapted to. work above the sandbolster 5 for the important purpose before mentioned. To the upper armof the floating lever 13 is connected one end ofthe rod 19 throughthemedium of which the brake is applied and released.

erewith, but I ldesirejit understood llll lutely released.

with the -resultfthat the brake -sh'oes^on the v other beam llfat theright hand-side inthe drawing will be applied -to the adjacentwheelslQ*7 andyall ofthe'wheels will-be powerfully braked. It will alsobe underl stood that er1-movement -Iofthe-brake rody 19 inthedirectionopposite to that indicated by arrow infFigui-e 5, fthe-brake.shoeswill'positively and gravitationally-move away from thewheelsY-so that vthebra-ke -vwill be -abso- In'addition to th'epractical advantageshereinbefore ascribed to v4myY-novel brake it will be readilylnotedthatA the brake issimple andineXpe-nsive in construct-ion,isreliable in operation, andis well adaptedto withstand the rough lusage'to which railway brakes -areordinarilysubj ected.

I- have entered into a detailed description of the constructionandrelative arrangement, oftl'ie parts; embraced *in fthe present yandpreferred embodiment of my invention in order to impartv a full, clearand exact uuders/sanding' ofthesaid embodiment. I do not desire,however, to be understood as con- `ini'ngmyself to the specificconstruction and relativearrangement kof parts `inasmuch as 1n theIfuture practlce of the lnvention Varlous changes andmodificationsmaybe-made such asV fall within the 'scopeA of 1'rnyyinvention v--asdened in luy-appended claim.

Havingdescribed my invention, whatLI claim 'and des-ire'to `securefbyyLetters-Patent,' 1S:

In a brake co11struction,-tlae'combination of fa 'truck `frame includingIside.members on -whieh Iare brackets rand. inwardly extend,

ing '"shelvesyandv brake means carried by the.

said -lftru'ek lfra-me fand, including swinging meansA pvotallyconnectedflto and' extending upwardly from -theesa-idt brackets and'vcarrying crosswise beamsfabove :said Shelvesiand shoesfon kthe beams,ysaid #shoes #being "arranged to be v'Opposed'- to the lupper innerquarters of wheels complementary L:to i ithe truck frame, "and meanseforf: the 'actuation of the said Yswinging3liirieairs.

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